private void btnAdd_Click(object sender, EventArgs e) { using (formAddMod add = new formAddMod()) { if (add.ShowDialog() == DialogResult.OK) { Mod m = new Mod(add.txtName.Text, new Uri(add.txtUrl.Text)); var item = new ListViewItem(m.Name); item.SubItems.Add(m.URL.AbsoluteUri); item.Tag = m; lsvMods.Items.Add(item); } } }